[RFC PATCH 2/5] fs/proc: Introduce /proc/all/statm
From: Eugene Lubarsky <hidden>
Date: 2020-08-10 14:59:39
Also in:
linux-fsdevel, lkml
Subsystem:
filesystems (vfs and infrastructure), proc filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Returns statm lines for all visible processes with prepended PIDs. Signed-off-by: Eugene Lubarsky <redacted> --- fs/proc/base.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e0f60a1528b7..8396a38ba7d2 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c@@ -3884,6 +3884,18 @@ static int proc_all_stat(struct seq_file *m, void *v) return proc_tgid_stat(m, iter->ns, iter->tgid_iter.task->thread_pid, iter->tgid_iter.task); } +static int proc_all_statm(struct seq_file *m, void *v) +{ + struct all_iter *iter = (struct all_iter *) v; + struct pid_namespace *ns = iter->ns; + struct task_struct *task = iter->tgid_iter.task; + struct pid *pid = task->thread_pid; + + seq_put_decimal_ull(m, "", pid_nr_ns(pid, ns)); + seq_puts(m, " "); + return proc_pid_statm(m, ns, pid, task); +} + #define PROC_ALL_OPS(NAME) static const struct seq_operations proc_all_##NAME##_ops = { \ .start = proc_all_start, \
@@ -3893,6 +3905,7 @@ static int proc_all_stat(struct seq_file *m, void *v) } PROC_ALL_OPS(stat); +PROC_ALL_OPS(statm); #define PROC_ALL_CREATE(NAME) \ do { \
@@ -3908,4 +3921,5 @@ void __init proc_all_init(void) return; PROC_ALL_CREATE(stat); + PROC_ALL_CREATE(statm); }
--
2.25.1